年限

This study consists of three parts. Firstly the equivalently accelerative corrosive environment is determined through the analysis of statistic data of corrosion environment. Secondly the fatigue test is carried out under the constant amplitude cyclic loading for the specimens which are exposed in the corrosive environment for equivalent calendar time of zero year, 3 years, 8 years and 13 years. Four S-N curves with different corrosive time are obtained based on the fatigue experiment. Finally the regression method of S-N curves for experimental data is researched and a weighted least square fit is put forward in which the weigh of a group of test data is inversely proportional to the length of the confidence interval.

进行了以下几个方面的工作：(1)通过实测、统计、分析得到了当量加速环境谱；(2)完成了在当量加速环境谱下预腐蚀日历年限0年、3年、8年和13年的腐蚀试验，并进行了成组常幅疲劳试验，得到了不同预腐蚀年限下的S-N曲线；(3)进行预腐蚀后的S-N曲线的数据拟合方法的研究，提出了考虑置信区间长度影响的加权最小二乘法。

Further analysis illustrated that similarities and differences lie in the RE of CHD and CAS. Blood stasis and cbronic broncbitis are similar RF of both diseases; similar but different Rf covered liver deficiency, hypertension, diabetes, year of hyperlpemia, high blood sugar, tigh blood stasis, high cbolesterol. Among them, bigher positive rate of liver deficiency, hypertension and diabetes, longer year of hyperlipemia, higbef blood sugar, more serious blood stasis remain in CHD while higher cholesterot existing in CAS in this study. Moreover, qi deficiency, heart deficiency, Phlegm, senility index, putse pressure, LOP, TG, HDL/TC, Low putmonary 、function are different RF of both diseases.

进一步分析CHD和CAS易患因素异同的结果表明：CHD和CAS，相同易患因素有血瘀、慢支；同中有异的易患因素有肝虚、高血压、糖尿病、高脂血症年限、高血糖、高胆固醇、血液粘滞性增高；其中CHD的肝虚、高血压和糖尿病发生率较高，高脂血症年限较长、血糖较高、血液粘滞性严重，CAS的总胆固醇在本次分析中较CHD高；不同易患因素有气虚、心虚、痰浊、衰老指数、脉压、LPO、TG、HDL/TC、肺功能低下。

The new point of view that determining the depreciable life with the economic life of the vixed assets is stated in this paper.

本文提出了以固定资产的经济寿命作为折旧年限的观点，并给出了经济寿命的计算方法和确定固定资产折旧年限的实例。

The 10 a plot had the highest community average height, abundance, and above ground biomass, but the community average increased with enclosure time and the 25 a plot had the highest community average coverage. Enclosure for 10 a gave the highest species diversity index in the third plots, while 15 a had the highest' richness index and lowest evenness index. The highest evenness index was in the non-enclosure plot. Exclosure appears to maintain or conserve, rather than increase plant diversity in contrast to non-enclosure.

结果表明，围封10年样地群落的高度、多度以及地上生物量最大，而群落的盖度则随封育年限的增加呈显著增加趋势，在封育25年达到最大；围栏封育的不同年限也显著影响了群落的物种多样性，在围封10年样地群落具有最高的多样性指数，围封15年样地具有最高的丰富度指数，而均匀度指数则是在未封育群落中表现为最高值，最低值是在物种丰富度最高时出现。

By using the method of space substituting time, alpine-cold steppe in different ages of enclosing was studied. We selected 4 flat plots with relatively uniform topography and enclosed time were 1-year old exclosure (E1), 3-year old exclosure(E3), 5-year old exclosure (E5), unexclosure. The grasslands were freely grazing pasture, grazing rate of 5.7 sheep / hm2. After enclosure, it was used as spring pasture, 5.7-grazing sheep / hm2. Unexclosure plot were 5.7-grazing sheep / hm2 in addition to the winter.

本文，运用空间代替时间的方法对不同围封年限的草地进行研究，结果表明：（1）随着围封年限的延长，天山赖草种群在群落中的地位逐渐弱化，优良牧草羊茅和紫花针茅种群在群落中的优势逐渐体现出来，群落由天山赖草+黄花棘豆群落类型逐步向羊茅+紫花针茅群落类型过渡。

Through different years management, the bamboo forest land soil chemistry nature shows different characteristic .Along with management years increase, soil's pH value go down ; The soil's OM, TN and the hydrolyte N all drops; The soil total P and the available K drops at first ,then go up.

4不同经营年限毛竹林地土壤化学性质变化特点：随着经营年限的增加，土壤pH值变化表现为下降趋势；土壤有机质、全氮和水解氮变化总体下降；土壤全磷和速效钾表现为先下降后上升趋势。

After completion of project construction, an annual capacity of 20~30 megawatt can be achieved.

项目总投资：5000万元，建设年限：1-2年，预期投资回收年限：3-4年。

Moreover,This article bases on the data of a investigation on 3026 returned peasants, which was carried out in May 2007, and uses an modified Mincer income model to test the rates of return from labor capital.

在考察返乡创业农民工常规形式的人力资本时，认为受教育年限、累计务工年限、职业类别与行业因素等对农民工返乡后收入的影响要高于对其务工期间收入的影响。

As the representative of the northern Loess Plateau gully region, the soil quality under different cultivation length of the orchard in Changwu county was studied. Using partial correlation coefficient to determine the weight, combined with evaluation of membership Sanction to evaluate soil quality levels of the area, the trend of orchard soil quality under different cultivation years was analyzed. The results showed that the IFI values of orchard soil were between 0.22 and 0.70, 27% of them reached the second soil quality standards, 64% reached a third-level soil quality standards, 9% met the fourth standards of soil quality.

以长武北部黄土高原沟壑区为代表，研究了不同果园种植年限下的土壤质量现状，运用偏相关系数法确定权重，结合隶属度函数评价了该地区土壤的综合肥力水平，分析果树种植中土壤质量随着种植年限的变化趋势，结果表明：黄土沟壑区果园土壤IFI值在0.22~0.70，其中有27%达到了2级土壤质量标准，64%达到了3级土壤质量标准，9%达到了4级土壤质量标准。

Agrioph yllum squrrosum and Psammochloa villosa community change Salix Cheilophila Schntid artifactitious vegetation community. No species was disappeared in succession. Between the species diversity and the time sandy barrier was positive correlation.

研究结果表明：随着沙障设置年限的增加，群落的物种数增加；群落类型由沙障设置前的沙米＋沙竹群落发展成沙柳人工植被群落，在演替过程中无物种消失，物种多样性与沙障设置年限基本呈正相关关系。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。